An Implantable RFID Sensor Tag toward Continuous Glucose Monitoring | IEEE Journals & Magazine | IEEE Xplore

An Implantable RFID Sensor Tag toward Continuous Glucose Monitoring


Abstract:

This paper presents a wirelessly powered implantable electrochemical sensor tag for continuous blood glucose monitoring. The system is remotely powered by a 13.56-MHz ind...Show More

Abstract:

This paper presents a wirelessly powered implantable electrochemical sensor tag for continuous blood glucose monitoring. The system is remotely powered by a 13.56-MHz inductive link and utilizes an ISO 15693 radio frequency identification (RFID) standard for communication. This paper provides reliable and accurate measurement for changing glucose level. The sensor tag employs a long-term glucose sensor, a winding ferrite antenna, an RFID front-end, a potentiostat, a 10-bit sigma-delta analog to digital converter, an on-chip temperature sensor, and a digital baseband for protocol processing and control. A high-frequency external reader is used to power, command, and configure the sensor tag. The only off-chip support circuitry required is a tuned antenna and a glucose microsensor. The integrated chip fabricated in SMIC 0.13-μm CMOS process occupies an area of 1.2 mm × 2 mm and consumes 50 μW. The power sensitivity of the whole system is -4 dBm. The sensor tag achieves a measured glucose range of 0-30 mM with a sensitivity of 0.75 nA/mM.
Published in: IEEE Journal of Biomedical and Health Informatics ( Volume: 19, Issue: 3, May 2015)
Page(s): 910 - 919
Date of Publication: 23 March 2015

ISSN Information:

PubMed ID: 25823049

Funding Agency:


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